Hello there,
A little backstory..
I bought a Mavic Mini from a person that crashed it, with the intention of fixing it (assumed I could do it, because of the extensive experience in DIY drone world). The crash resulted in a weird gimbal behavior and inappropriately working altitude hold. After turning the MM on, it turns the gimbal in all the directions and at the end it does this weird thing where it will tilt the horizon clockwise and anti clockwise a few times, before locking in horizon level (at this point it wont react to the movement of the drone). Sometimes it does this, but sometimes it will turn on just fine. When it gets stuck, I will get an error of "Gimbal stuck..". Now as the altitude was not working properly, I decided to swap out the IMU module as it is conected to the gimbal as well, thinking these two problems might be interconnected. What happened now was, I had an unsuccessful IMU calibration and now it wont go further than 0/5 step. It loads real slowly and the blinking orange light goes solid red after a few seconds, which makes me thing there is another problem. Now if the gimbal turns on fine, it will react to the movement of the drone, stabilizing it, which makes me thing that the IMU itself is working properly, but at this point I am out of ideas where to look. Any help or guidance would be appreciated.
What have I tried:
1. Refreshing the firmware
2. Downgrading and after unsuccessful test again upgrading the firmware to the latest
3. As previously stated, swapped out the faulty IMU/GPS module (it also showed that the barometer initialization has failed beforehand, which is now solved)
4. Checked the connections multiple times
5. Tried different phones
6. Even tried cooling it off and performing the calibration
7. Discharged/charged all the batteries (phone, RC, drone)
8. Tried calibrating indoors/outdoors
9. Put the old IMU module back in, which results in the same behavior as the new one, except the barometer error.
Gimbal related:
1.Used compressed air to try to blow out any debris possibly stuck in the motors or anything alike
2. Tested all the movement directions, which seem to move as freely as possible.
All of the tries result in the same slow calibration percentage growth, with solid red light on, which eventually ends with a "calibration failed". But the behavior makes me thing it takes so long cause it cannot find it, perhaps?
My further plan would be try to replace the ribbon cable that connects the two, but I would prefer not to blindly order parts to just test if it works or not. Could these two problems be interconnected, or that is a long shot?
P.S. before buying it, he showed me in person that the drone flies, the only errors it had then, was the "gimbal is stuck" one, and no other. I just went to perform the IMU calibration, as I was replacing this specific part.
A little backstory..
I bought a Mavic Mini from a person that crashed it, with the intention of fixing it (assumed I could do it, because of the extensive experience in DIY drone world). The crash resulted in a weird gimbal behavior and inappropriately working altitude hold. After turning the MM on, it turns the gimbal in all the directions and at the end it does this weird thing where it will tilt the horizon clockwise and anti clockwise a few times, before locking in horizon level (at this point it wont react to the movement of the drone). Sometimes it does this, but sometimes it will turn on just fine. When it gets stuck, I will get an error of "Gimbal stuck..". Now as the altitude was not working properly, I decided to swap out the IMU module as it is conected to the gimbal as well, thinking these two problems might be interconnected. What happened now was, I had an unsuccessful IMU calibration and now it wont go further than 0/5 step. It loads real slowly and the blinking orange light goes solid red after a few seconds, which makes me thing there is another problem. Now if the gimbal turns on fine, it will react to the movement of the drone, stabilizing it, which makes me thing that the IMU itself is working properly, but at this point I am out of ideas where to look. Any help or guidance would be appreciated.
What have I tried:
1. Refreshing the firmware
2. Downgrading and after unsuccessful test again upgrading the firmware to the latest
3. As previously stated, swapped out the faulty IMU/GPS module (it also showed that the barometer initialization has failed beforehand, which is now solved)
4. Checked the connections multiple times
5. Tried different phones
6. Even tried cooling it off and performing the calibration
7. Discharged/charged all the batteries (phone, RC, drone)
8. Tried calibrating indoors/outdoors
9. Put the old IMU module back in, which results in the same behavior as the new one, except the barometer error.
Gimbal related:
1.Used compressed air to try to blow out any debris possibly stuck in the motors or anything alike
2. Tested all the movement directions, which seem to move as freely as possible.
All of the tries result in the same slow calibration percentage growth, with solid red light on, which eventually ends with a "calibration failed". But the behavior makes me thing it takes so long cause it cannot find it, perhaps?
My further plan would be try to replace the ribbon cable that connects the two, but I would prefer not to blindly order parts to just test if it works or not. Could these two problems be interconnected, or that is a long shot?
P.S. before buying it, he showed me in person that the drone flies, the only errors it had then, was the "gimbal is stuck" one, and no other. I just went to perform the IMU calibration, as I was replacing this specific part.
